ngtcp2_conn_encode_early_transport_params
=========================================

Synopsis
--------

*#include <ngtcp2/ngtcp2.h>*

.. function:: ngtcp2_ssize ngtcp2_conn_encode_early_transport_params(ngtcp2_conn *conn, uint8_t *dest, size_t destlen)

    
    `ngtcp2_conn_encode_early_transport_params` encodes the QUIC
    transport parameters that are used for early data in the buffer
    pointed by *dest* of length *destlen*.  The subset includes at
    least the following fields:
    
    - initial_max_stream_id_bidi
    - initial_max_stream_id_uni
    - initial_max_stream_data_bidi_local
    - initial_max_stream_data_bidi_remote
    - initial_max_stream_data_uni
    - initial_max_data
    - active_connection_id_limit
    - max_datagram_frame_size
    
    If *conn* is initialized as server, the following additional fields
    are also included:
    
    - max_idle_timeout
    - max_udp_payload_size
    - disable_active_migration
    
    If *conn* is initialized as client, these parameters are
    synthesized from the remote transport parameters received from
    server.  Otherwise, it is the local transport parameters that are
    set by the local endpoint.
    
    This function returns the number of bytes written, or one of the
    following negative error codes:
    
    :macro:`NGTCP2_ERR_NOBUF`
        Buffer is too small.